Nadia Petrova was a major recurring character of The Vampire Diaries season 5. She was a vampire and a member of The Travelers who was Katerina Petrova’s daughter, making her an ancestor of Elena Gilbert and a descendant of Amara. She had a relationship with regular male character Matt Donovan (Zach Roerig).

Nadia was the first character to share a same-sex kiss with Rebekah (Claire Holt), implying she might be bisexual. She was also the first character to engage in an on-screen threesome with Matt and Rebekah in the season 5 premiere. Her motivation in the scene however was unclear, she might have only participated to seal from them.

Nadia was bitten by the hybrid Tyler Lockwood when it became clear that Nadia was up to something, and ultimately died from her wound.

Appearances:

12 episodes.

Female love interests:

Rebekah Mikaelson (Claire Holt, straight, recurring, threesome)

Relationship story arc with a woman: No

Male love interests:

Matt Donovan (Zach Roerig, regular)

Relationship story arc with a man: Yes

Filter Relationship Arc:

[1] A relationship story arc is defined as explicit, developed on screen, and lasting more than 3 episodes. It is listed as questionable or subtext if romance is only implied, mentioned instead of shown on screen, part of a dream sequence, or otherwise not explicit for the viewer.[2] Sweeps episodes air in February, May, July and November, the periods when advertising rates are set. A character is marked as "sweeps" when there is a very limited number of episodes that address their sexuality, all air during sweeps period, and the storyline is otherwise ignore/dropped.

Quotes

I did want to mention that I recently became aware of a conversation taking place in the television fan community about a story trope the writers and I were unfamiliar with. […] Unfortunately on The Vampire Diaries, death is the probable outcome for nearly every character who passes through our universe.